Chat UI from readme fails

[andimarafioti]

I installed the project from source in a new environment and tried to launch the chat_ui using the instructions in the readme, but it fails with a parsing error. It seems to come from some internal code changes. I'm using python 3.11.11

❯ python -c "import mlx_vlm; print(mlx_vlm.__version__)"
0.1.11

❯ python -m mlx_vlm.chat_ui --model mlx-community/Qwen2-VL-2B-Instruct-4bit
Fetching 11 files: 100%|███████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 11/11 [00:00<00:00, 27995.96it/s]
Fetching 11 files: 100%|███████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 11/11 [00:00<00:00, 20717.26it/s]
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/Users/andresmarafioti/Documents/SmolVLM250M/.venv/lib/python3.11/site-packages/mlx_vlm/chat_ui.py", line 26, in <module>
    model, processor = load(args.model, {"trust_remote_code": True})
                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/andresmarafioti/Documents/SmolVLM250M/.venv/lib/python3.11/site-packages/mlx_vlm/utils.py", line 275, in load
    model = apply_lora_layers(model, adapter_path)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/andresmarafioti/Documents/SmolVLM250M/.venv/lib/python3.11/site-packages/mlx_vlm/trainer/utils.py", line 139, in apply_lora_layers
    adapter_path = Path(adapter_path)
                   ^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.11.11/Frameworks/Python.framework/Versions/3.11/lib/python3.11/pathlib.py", line 871, in __new__
    self = cls._from_parts(args)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.11.11/Frameworks/Python.framework/Versions/3.11/lib/python3.11/pathlib.py", line 509, in _from_parts
    drv, root, parts = self._parse_args(args)
                       ^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/homebrew/Cellar/[email protected]/3.11.11/Frameworks/Python.framework/Versions/3.11/lib/python3.11/pathlib.py", line 493, in _parse_args
    a = os.fspath(a)
        ^^^^^^^^^^^^
TypeError: expected str, bytes or os.PathLike object, not dict